MESON Chess Problem Database
Problem Display
PID: 200838 (2q5/6N1/4b2Q/4k3/Rn2P3/8/5N2/3RB2K w - - 0 1)
Bylevski, Aleksandr
Bylevski, Boris
Sachova skladba, 1989
#2
8 + 4
SOLUTION
- SOUND
- Sets
- 1...Qa6
- 2.Bc3#
- 1...Qb7
- 2.Bc3#
- 1...Qc3
- 2.Bxc3#
- 1...Qa8
- 2.Bc3#
- 1...Qb8
- 2.Bc3#
- 1...Qe8
- 2.Bc3#
- 1...Qf8
- 2.Bc3#
- 1...Qg8
- 2.Bc3#
- 1...Qh8
- 2.Bc3#
- 1...Ba2
- 2.Qd6#
- 1...Bb3
- 2.Qd6#
- 1...Bh3
- 2.Qd6#
- 1...Bc4
- 2.Bc3#
- 2.Qd6#
- 1...Bg4
- 2.Qd6#
- 1...Bf5
- 2.Qd6#
- 1...Bd7
- 2.Qd6#
- 1...Bf7
- 2.Qd6#
- 1...Bg8
- 2.Qd6#
- 1...Qa6
- Tries
- 1.Sg4+?
- 1...Kxe4
- 2.Qe3#
- 1...Bxg4!
- 1...Kxe4
- 1.Sg4+?
- Keys
- 1.Se8!
- threat
- 2.Qh2#
- 2.Qf6#
- 1...Qxe8
- 2.Bc3#
- 1...Qc1
- 2.Qf6#
- 1...Qc3
- 2.Bxc3#
- 2.Qf6#
- 1...Qd8
- 2.Qh2#
- 1...Ba2
- 2.Qd6#
- 2.Qf6#
- 1...Bb3
- 2.Qd6#
- 2.Qf6#
- 1...Bh3
- 2.Qd6#
- 2.Qf6#
- 1...Bc4
- 2.Bc3#
- 2.Qd6#
- 2.Qf6#
- 1...Bg4
- 2.Qd6#
- 2.Qf6#
- 1...Bd5
- 2.Qd6#
- 2.Qf6#
- 1...Bf5
- 2.Qd6#
- 1...Bd7
- 2.Qd6#
- 2.Qf6#
- 1...Bf7
- 2.Qd6#
- 2.Qf6#
- 1...Bg8
- 2.Qd6#
- 2.Qf6#
- 1...Sd3
- 2.Sxd3#
- 2.Qf6#
- 1...Sd5
- 2.Sd3#
- threat
- 1.Se8!
FEATURES
- Static
- TYPE = THREAT
- CHANGED MATES = 0
- ADDED MATES = 3
- REMOVED MATES = 15
- Sets
- Q(d);N_GUARD::B(B)
- Q(d);N_GUARD,P_PINP(F)::B(B)
- Q(d);N_GUARD::B(B),XQ(d)
- Q(d);N_GUARD,P_PINQ(G)::B(B)
- B(c);OGATE::QAB1(G)
- Tries
- Try
- S(D);CHECK
- Vars
- K(b);P-FLIGHT,P_SPINS(a),XP(F)::QAR1(G)
- Refutation
- B(c);XS(D)
- Try
- Actual
- S(H);
- Threat
- DUALS(2)
- Vars
- Q(d);N_GUARD,XS(H)::B(B)
- Q(d);::QAB1(G)
- Q(d);::QAB(G)
- B(c);OGATE::QAB1(G)
- S(a);N_GUARD::S(D)
Developed and maintained by Brian Stephenson.
Implemented with HTML5, MySQL, Perl (with, inter alia, CGI::Simple, HTML::Template & XML::LibXML) &
CSS/Javascript (jQuery, Bootstrap & DataTables).